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. 2022 Oct 31;11(21):3450. doi: 10.3390/foods11213450

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Fluorescence intensity of FPN1 (300 mg/L) upon addition of various analytes (15 mg/L for each, 1, acetaldehyde; 2, acetal; 3, furfural; 4, 5-HMF; 5, acetoin; 6, 2,3-butanedione; 7, 2,3-pentanedione; 8, 2.3-hexanedione; 9, pruvate; 10, propanone; 11, hydroxypropanone; 12, α-ketoglntaric acid; 13, methylglyoxal; 14, propionaldehyde; 15, butyraldehyde; 16, isobutyraldehyde; 17, isovaleraldehyde; 18, caproaldehyde; 19, nonanal; 20, phenylacetaldehyde; 21, glyoxal; 22, Asn; 23, Gln; 24, ethanol; 25, 1-propanol; 26, 1-butanol; 27, isobutanol; 28, isoamyl alcohol; 29, phenethyl alcohol; 30, 3-methylbutanol; 31, acetic acid; 32, lactic acid; 33, ethyl acetate; 34, isopentyl acetate; 35, caproic acid; 36, ethyl caproate; 37, ethyl lactate; 38, MES; 39, TMP. The test was performed in triplicate.